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Device and Material Characterisation of Vertical Cavity Surface Emitting Lasers

垂直腔表面发射激光器的器件和材料表征

基本信息

批准号：
2105547
负责人：
金额：
--
依托单位：
CARDIFF UNIVERSITY
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2105547
关键词：
Device Material Characterisation Vertical Cavity

项目摘要

Vertical Cavity Surface Emitting Lasers (VCSELs) are required for a large number of applications due to low energy usage, superior beam quality and the potential for very large volume manufacturing. The epitaxial layer design and the fabrication methodology are substantially different for the different characteristics required by different applications. This leads to different requirements in the scaling up of manufacturing. The student will gain an overview of the entire VCSEL manufacturing process from the design of suitable structures for particular applications, the growth of the Compound Semiconductor layers, the fabrication of devices and arrays of devices, the on-wafer testing for quality assurance and the measurement of individual characteristics together with an understanding of the underlying physics. The student will address the scientific challenges associated with manufacturing two representative types of VCSELS; the first primarily requiring the efficient conversion of electrical to optical energy and the second focussed on VCSELs with very high beam quality and narrow laser linewidth. The student will also investigate the opportunities for growth and fabrication on different substrates such as Silicon and even amorphous materials. Industrial CASE award in partnership with IQE plc. (4 year funded PhD)Supervisors Prof Peter Smowton and Dr Iwan Davies (IQE)The PhD will be carried out across the IQE and Cardiff University sites

垂直腔表面发射激光器 (VCSEL) 因其低能耗、卓越的光束质量和大批量制造的潜力而被大量应用所需要。对于不同应用所需的不同特性，外延层设计和制造方法有很大不同。这导致了扩大制造规模的不同要求。学生将获得整个 VCSEL 制造过程的概述，从针对特定应用的合适结构的设计、化合物半导体层的生长、器件和器件阵列的制造、用于质量保证的晶圆上测试和单个特性的测量以及对基础物理的理解。学生将解决与制造两种代表性 VCSELS 类型相关的科学挑战；第一个主要需要将电能有效转换为光能，第二个则侧重于具有极高光束质量和窄激光线宽的 VCSEL。学生还将研究在不同基材（例如硅甚至非晶材料）上生长和制造的机会。与 IQE plc 合作荣获工业案例奖。（4 年资助博士）导师 Peter Smowton 教授和 Iwan Davies 博士（IQE）博士将在 IQE 和卡迪夫大学校区进行